<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- 最新版本的 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css"
        integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">

    <style>
        .glyphicon {
            color: red;
            font-size: 100px;
        }

        .page-header {
            border-bottom: 0;
        }

        .page-header small {
            color: red;
        }
    </style>
</head>

<body>
    <!-- 
        bt  
            是一个纯前端框架
            比较老的框架   用的很少
            基于jq和css的

            响应式设计


            使用的时候  需要引入对应的css文件  js文件    在线地址存在了CDN上面

     -->

    <!-- 图标的用法 -->
    <span class="glyphicon glyphicon-asterisk"></span>
    <i class="glyphicon glyphicon-search"></i>


    <!-- 页头 -->
    <div class="page-header">
        <h1>案例 <small>case</small></h1>
    </div>


    <!-- 缩略图 -->
    <div class="row">
        <div class="col-sm-6 col-md-4">
            <div class="thumbnail">
                <img src="..." alt="...">
                <div class="caption">
                    <h3>Thumbnail label</h3>
                    <p>...</p>
                </div>
            </div>
        </div>
        <div class="col-sm-6 col-md-4">
            <div class="thumbnail">
                <img src="..." alt="...">
                <div class="caption">
                    <h3>Thumbnail label</h3>
                    <p>...</p>

                </div>
            </div>
        </div>
        <div class="col-sm-6 col-md-4">
            <div class="thumbnail">
                <img src="..." alt="...">
                <div class="caption">
                    <h3>Thumbnail label</h3>
                    <p>...</p>

                </div>
            </div>
        </div>
        <div class="col-sm-6 col-md-4">
            <div class="thumbnail">
                <img src="..." alt="...">
                <div class="caption">
                    <h3>Thumbnail label</h3>
                    <p>...</p>

                </div>
            </div>
        </div>
    </div>

</body>

</html>